URUNC: A Unikernel Container Runtime
Talkat ContainerCon @ OSS EU 2023 · on Wednesday, 2023-09-20· at 14:40· Room 0A (Floor 0), Abandoibarra Etorb., 4, 48011 Bilbao, Bizkaia, Spain·
summary
urunc is a Go CRI-compatible container runtime that spawns unikernel VMs from OCI images built with bima, using existing registries and containerd’s pull/unpack flow; it treats unikernels as processes, forks a re-exec helper, then replaces it with a VMM and passes a TAP device via CNI and a devmapper-backed rootfs. demos show solo5/Unikraft nginx and a KNative function booting and responding, proving cloud‑native deploy, lower memory footprint and very fast startup.
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chapters (15)
- 0:00URUNC project introduction
- 1:08Team background
- 3:18Containers vs VMs in cloud
- 6:32Applications' stack needs
- 8:19Unikernels as single-address kernels
- 9:22Cloud-native unikernel challenges
- 10:48URUNC container runtime
- 12:39URUNC execution flow
- 15:48Solo5 unikernel with URUNC
- 18:04Unikernels in Kubernetes
- 20:18URUNC for serverless optimization
- 24:31KNative demo with URUNC
- 26:48Unikernels as cloud alternative
- 27:11Closing and open-source
- 27:33Q&A
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